Dark Forces cheats and cheat codes for Playstation

Select any stage: Enter "P3NDLDQNY2" as a password.
Select stage and all guns: Enter "205F6HJT0V" as a password.

Cheat menu
During the game play, push Left, O, X, Right, O, X, Down, O, X. 
to display the cheats menu. You can select the following options:
Coords: Show current position.
Gamewon: Skip to next level.
Invincible: No damage.
Maxout: All weapons and ammo.
Pal mode: Switches NTSC to PAL, will freeze NTSC machines.
Pogo: Higher jump
Ponder: Disable AI.
Supermap: Show full map of current level.

Enable the "Gamewon" option at the cheat menu to use the level skip 
feature. Then quit from the menu and pause the game to access a new
option to skip to the next level.

Level Passwords:

Password - Mission - Name
09VCJGG7WM - Mission 2  
18WBDP7RMN - Mission 3  
885BVHMCQ8 - Mission 4 - Imperial Weapons Facility
!32ZNJQHT3 - Mission 5 - Gromas Mines
GV8KF!G6KL - Mission 6 - Imperial Detention Center
3X8MJ47R3X - Mission 7 - Ramsees Shed
LMZRK4!R3D - Mission 8 - Robotics Facillity
BR2WYK2CQJ - Mission 9 - Nar Shadda
00GBNLJ4G0 - Mission 10 - Jabba's Ship
T2GDTJG5JT - Mission 11 - Imperial City
H2DCTKH40S - Mission 12 - Fuel Station
PPYRQP58LD - Mission 13 - The Executor
RT2W121V7J - Mission 14 - The Arc Hammer